Analysis of full charge reconstruction algorithms for x-ray pixelated detectors
Existence of the natural diffusive spread of charge carriers on the course of their drift towards collecting electrodes in planar, segmented detectors results in a division of the original cloud of carriers between neighboring channels. This paper presents the analysis of algorithms, implementable with reasonable circuit resources, whose task is to prevent degradation of the detective quantum efficiency in highly granular, digital pixel detectors. The immediate motivation of the work is a photon science application requesting simultaneous timing spectroscopy and 2D position sensitivity. Leading edge discrimination, provided it can be freed from uncertainties associated with the charge sharing, is used for timing the events. Analyzed solutions can naturally be extended to the amplitude spectroscopy with pixel detectors.
- Research Organization:
- Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- DOE Contract Number:
- AC02-07CH11359
- OSTI ID:
- 1033681
- Report Number(s):
- FERMILAB-CONF-11-496-PPD; TRN: US1200597
- Resource Relation:
- Conference: Presented at 2011 IEEE Nuclear Science Symposium and Medical Imaging Conference, Valencia, Spain, 23-29 Oct 2011
- Country of Publication:
- United States
- Language:
- English
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